Overheating Issues, Perplexed

[fkemmerer]

Originally Posted by DAVID GAGNARD

Fred;


I looked at the site the other day and again today and found this, doesn't make a lot of sence to me.......




I have fairly new glasses and according to what I read on the March site, all the crank pulleys are smaller in diameter than the water pump pulleys listed!!!!!!!!!!! how can that speed up your water flow when your slowing down the water pump rpms?????? dem guys at March must have been smoking some really good stuff that day!!!!!!!!!

I'm sure if one called them, they would be able to get a water pump pulley of the size needed, I know March makes many different size pulleys............

David

Note the size of the water pump pulleys in the standard vs the "overdrive" sets. In the later case, the water pump pulley is smaller which makes the water pump turn faster. In all cases, the water pump turns slower than the crank (imagine what the cavitation that a water pump would produce if you buzzed it to the 7,000 RPM or above that the motor runs at).

- Fred